Barking machine



BARKING MAGHINE Filed- Feb. 14, 1929 2 sheets-sheet :2

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Patented Aug. 4, r1931 y l i y, y I

' UNITED 'STATES PATENT oFFie-E i Application led February 14, 1929, Serial No. 339,982, and in Finland September 15, 1928..

The present vinvention relates to barking On the outer side of the drum two cylinmachines of the kind comprising a long hor-v drieal bands 20 are fixed to which are sevizontal revolving Vdrum which is open at cured annularflanges or the like y5, foriny both ends and placed in a container partly stance by means of angle-irons. Each such i filled with water, said drum being further flange at its outer border is provided with 55 supported by wheels, rollers or the like en a ring 6 -onthe inside of which is arranged gaging the 4inside of the upper halves of Iana wearing ring 21. If necessary, the ring nu'lar rings on the drum so as to suspendy 21 may be omitted, the inside of the ring6 this latter at points,at least two of which itself then forming friction surface.

l@ lie n each side of the longitudinal vertical The elements 5, 6, 20f and 21 can, if neces- 60 lane of the drmn sary, be made in one single piece 'of east-iron 1 The invention consists broadly therein or steelcastings i y that at least one ofthe said supporting rEhe inside ofl each ring 21 yor 6V forms a7* wheels or the like is a driving wheel adapted circular friction path the; upper part -of l5 t0 rotate the drum, which engages two friction wheels or the 65 'By this invention is obtained that simul'- `like 7, which yare arranged on each side of Y taneously as the drum is prevented from 'thelongitudinal "vertical symmetrical plane moving (swinging) laterally by the said of the drum. In this embodiment there are supporting and driving wheels all ther supthus two `parallel friction wheel shafts 9 A porting or driving members can lie' above provided with ay friction wheel lat each end. 70

the water in the container, so that the stick- The shafts 9 are `i'ournalled in the frame 8, ing of waste bark in the driving andl supand are each provided-with a sprocket 10 porting members or between these and the which is connected by means of the chains drum is eliminated and no other means than 11 with the sprocket 12 ona shaft 13. This said supporting wheels or one or more ofV latter is connected by means of atoothed them are necessary to rotate the drum. gearing 14, 15 with the Amain shaft 16 which yFour embodiments of the invention are is provided with driving rope pulleys 17. shown on the attached drawings where Fig. By the rotation of the inaiii shaft 16 the 1 is a side view of the first embodiment with friction Wheels 7 are thus rotated, "and 4the the container, the saidY rings and some other friction between the latter and the friction 80- parts in section. Fig. 2 is an end view of paths rigidly connected vwith the drum the same with the drum viewed in section causes said drum to revolve. Y' Y on the line A-B in Fig. 1. Fig. 3 shows Preferably `a scraper 18 secured to the Y the second embodiment from the end of the frame 8 is provided at the upper. part of drum. Figs. 4 and 5 show the third and each ring, said scraper engaging the friction fourth embodiments. from above. Y Surface of the ring 21 and scrapes it clean Reference is vfirst made to Figs. 1 kand 2, during the rotation of the drum. The revolving drum I1 Ais inlknown manner If desired or necessary, a driving toothed constituted by a plurality of rings 2 toV Wheel 32 can be arranged to gear with a 40 which are secured the longitudinally eXtendtoothed ring 33 on the outside of the flange 90 ing bars 3 which, as shown in the drawings, 5. This toothed wheel32 is driven from the may consist of angle-irons. y shaft 13 by meansof the sprocket wheel The drum is open at both ends and sub- (Fg- 2) the Chain 35 and the sprocket merged in the fluid container 4. The logs etc. Wheel 36. v Y which are to be barked are fed into one end of According to Fig. 3' the friction wheels 95 the drum and put in a tumbling motion by are substituted by toothed wheels 40 gearing the rotation of the drum, the bark having with toothed paths 41'formed on the inside been softened by the fluid then loosening of the rings 6 but valthough a more secure from the logs which gradually pass out of engagement between the wheels and rings the drum at the other end of the same.k is obtained in that way, some of ,the'advan-- tages of the friction gearing are lost, above everything the facility for cleaning the parts.

The gearing for transferring power from the main shaft to the shafts 9 of the friction Wheels may of course be of another kind than that shown in the drawing. Y

In certain cases, especially where ver f big drums are used, it can be suitable to use more than two wheels 7 for each friction path of the drum.

If desired, only one, two or more of the rings 6 can each cooperate with two or more driving wheels 7.

According to Fig. 4, there is only one Wheel 7 at the one end of the drum and this Wheel is arranged so as to both drive and suspend the drum while the two wheels at.

the other end are only7 suspending wheels.

According to Fig. 5 two oppositeA coaxially arranged wheels 7 are as well driving as suspending wheels, while 3l are only suspending Wheels.

It is to be observed that all wheels are arranged to cooperate with the upper half part of the annular paths on the periphery of the drum. Then two opposite coaxialiy arranged wheels are driving wheels they are preferably attached or made integral with a common shaft (see 13, Fig. 1,v and 37, Fig. 5).

The arrangement can also be such, that the one of two wheels, coaxially arranged on each end of a common shaft is secured to or made integral with the shaft, while the other is loosely mounted on the shaft and thus has no driving effect.

lVhat I claim as new and desire to secure by Letters Patent of the United States of America is Y 1. Barking machine consisting of a frame, a horizontal drinn adapted to receive the material at one end and delivering it at the other end, means for driving and supporting said drum, all the members of said means which engage the drum cooperating only with the upper half parts of annular paths ony the drum, said driving and supporting members comprising two shafts rotatably mounted in the frame, means for rotating said shafts, a wheel on each end of each of said shafts, two annular rings on the drum, said rings being spaced apart in the longitudinal direction of the drum and also spaced from the periphery of the drum, the wheels on the one end of said shafts engaging the inside of the upper half part of the one of said annular rings, while the wheels on the other end of said shafts enf gage the inside of the upper half part of the other annular ring, said rotary shafts being located one on each side of the longitudinal axial plane of the drum.

2. Barking machine consisting of a hori-` zontal drum adapted to receive the materialk at one end and delivering it at the other end, a frame, a device for rotating and supporting the drum, all the members of said device which engage the drum consisting solely of driving wheels, annular rings on the drum spaced apart from the periphery thereof, all the said driving wheels only engaging the inside of the upper halves of said rings so as to simultaneously suspend and rotate the drum, and said driving wheels being located .on both sides of the longitudinal vertical plane of symmetry of the drum.

Barking machine consisting of a horizontal drum adapted to receive the material at one end and delivering it at the other end, two annular rings on the drum, said rings being spaced apart in the longitudinal direction of the drum and also spaced from the periphery of the drum, a frame, the ,inner side of each of said rings being formed as a friction surface, two shafts rotatably mounted in the frame, friction wheels on both ends of said shafts, said wheels coopcrating with the upper half part of said friction surfaces and being the only meanseii 0 the drum to rotate and support it, being located on both sides of the long of the drum, gear wheels on said shafts, a driving sb ift, and means for rotating the gear wheels from said driving shaft.

Il. Bark] -g machine consisting of a hori- Zontal drum adapted to receive the material at one end and delivering it at the other end, two annular rings on the drum, said rings being spaced apart in the longitudinal direction of the drum and also spaced from the periphery of the drum, the inner side of said rings being formed as a friction surface, a frame, a device for rotating and supporting the drum, said device comprising two driven shafts rotatably mounted in the frame, a friction wheel on each end vof each of said shafts, the friction wheels on the one end of said shafts engaging the inside of the upper half part of the one of said annular rings while the Wheels on the other end of said shafts engage the inside of the upper part of the other annular ring, said friction wheels being the only .members of said device which engage the drum, said two friction wheel shafts being located on each side of the longitudinal vertical plane of symmetry of the drum.

In testimony whereof I aliix my signa.-

ture.

AXEL GUSTAF JOHANSSON.

1`v adinal vertical plane of symmetry l; lill 

